Sodium Azide → HCID 86673832, compound

HRID 1527381Notes

Reaction equation

HRID 1527381 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:12][C@H:11]([F:13])[CH2:10][C@H:9]1[CH2:14]OS(C)(=O)=O)=[O:7])([CH3:4])([CH3:3])[CH3:2].[N-:20]=[N+:21]=[N-:22].[Na+]>CN(C=O)C.O>[C:1]([O:5][C:6]([N:8]1[CH2:12][C@H:11]([F:13])[CH2:10][C@H:9]1[CH2:14][N:20]=[N+:21]=[N-:22])=[O:7])([CH3:4])([CH3:3])[CH3:2]

Participants

5

Reactant 2

HCID 33557Sodium AzideHCID 86673831HCID 86673831, compound

Product 1

HCID 86673832HCID 86673832, compound

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Conditions

Temperature
75 °C

Procedure

A mixture of (2S,4R)-4-fluoro-2-methanesulfonyloxymethyl-pyrrolidine-1-carboxylic acid tert-butyl ester (3.3 g, 11.1 mmol) and NaN3 (721 mg, 11.1 mmol) in DMF (50 mL) was stirred at 75° C. under nitrogen overnight. The mixture was diluted with water and extracted with EtOAc (×3). The combined organic extracts were washed with water (×3), dried over Na2SO4, and concentrated. The crude residue was purified by flash column chromatography on silica gel (c-hexane/EtOAc 100/0 to 0/100) to give the desired material. 1H-NMR (400 MHz, DMSO): δ (ppm) 5.25 (d, 1H), 4.03 (m, 1H), 3.92-3.70 (m, 2H), 3.5-3.25 (m, 2H), 2.27 (m, 1H), 2.2-1.8 (m, 1H), 1.43 (s, 9H).

Workup

  1. extractionextracted with EtOAc (×3)
  2. washThe combined organic extracts were washed with water (×3)
  3. dry with materialdried over Na2SO4
  4. concentrationconcentrated
  5. customThe crude residue was purified by flash column chromatography on silica gel (c-hexane/EtOAc 100/0 to 0/100)

Sources & evidence

ORD record
ord-ad922009fc3b4ed0b08cbbc49b461d57
Source dataset
uspto-grants-2015_07
Patent number
US09085555B2

Reaction notes

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